Revise log messages of Sidechain auto-deployment procedure

[cthulhu-rider]

• based on Update NNS contract in Sidechain deployment procedure neofs-node#2408
• refs Bundle neofs-contracts into IR nodes neofs-node#2195

according to @carpawell and @AnnaShaleva remarks, logging of Sidechain deployment routine should be improved in terms of severity and message contents. Overall I agree, but procedure contains a LOT of different conditions and cases, and we should analyze them one-by-one accurately. Since log is log and doesn't affect core behavior much, we decided to resolve log messages (both content and severity levels) within this issue.

it may be also useful to wait until first practical use-cases: with them we'll be able to "beautify" log more objectively

[AnnaShaleva]

What we need here is to remove (or convert to DEBUG-level) all logs that are related to the non-suitable notary requests received by the auto-deploy routine. This routine listens to all notary requests signed by the committee. Current code writes INFO-level logs in the following situations:

• if Removed event received (removal of notary request from pool
• If some non-related notary request with invalid number of signers is received
• If received notary request is signed by the receiver node
• etc...

IMO, all these situations are not an error, these messages are a part of a standard receiving flow, thus I doubt we should log them at all.

[AnnaShaleva]

Ref. nspcc-dev/neofs-node#2408 (comment), nspcc-dev/neofs-node#2408 (comment), nspcc-dev/neofs-node#2408 (comment), nspcc-dev/neofs-node#2408 (comment), nspcc-dev/neofs-node#2408 (comment).

[AnnaShaleva]

Ref. nspcc-dev/neofs-node#2408 (comment).

[carpawell]

nspcc-dev/neofs-node#2408 (comment)